Convert more loops to range-based equivalents
llvm-svn: 207714
diff --git a/llvm/lib/CodeGen/LiveVariables.cpp b/llvm/lib/CodeGen/LiveVariables.cpp
index b372ce0..758b216 100644
--- a/llvm/lib/CodeGen/LiveVariables.cpp
+++ b/llvm/lib/CodeGen/LiveVariables.cpp
@@ -702,12 +702,14 @@
///
void LiveVariables::analyzePHINodes(const MachineFunction& Fn) {
for (const auto &MBB : Fn)
- for (MachineBasicBlock::const_iterator BBI = MBB.begin(), BBE = MBB.end();
- BBI != BBE && BBI->isPHI(); ++BBI)
- for (unsigned i = 1, e = BBI->getNumOperands(); i != e; i += 2)
- if (BBI->getOperand(i).readsReg())
- PHIVarInfo[BBI->getOperand(i + 1).getMBB()->getNumber()]
- .push_back(BBI->getOperand(i).getReg());
+ for (const auto &BBI : MBB) {
+ if (!BBI.isPHI())
+ break;
+ for (unsigned i = 1, e = BBI.getNumOperands(); i != e; i += 2)
+ if (BBI.getOperand(i).readsReg())
+ PHIVarInfo[BBI.getOperand(i + 1).getMBB()->getNumber()]
+ .push_back(BBI.getOperand(i).getReg());
+ }
}
bool LiveVariables::VarInfo::isLiveIn(const MachineBasicBlock &MBB,